Description

  • Unable to Redeem Reward Points on ALL IAG Products (If attempted to use, the order will be cancelled)
    *** Usually Ships in 1 – 2 Weeks ***
    Proposition 65: P65 WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.
  • The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts that transform the block into a solid deck. The unique inserts feature small passages that allow needed coolant flow to the deck surface. The case halves are then CNC machined with O-ring receiver grooves around the bore surface as well as drilled and tapped to accept 1/2″ head studs that greatly reduce head gasket failure during high cylinder pressure scenarios. Next, the short block is Deck Plate bored and honed that to 86.25mm on our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. IAG’s in-house honing process is able to set piston to wall clearances tighter for a quieter running engine. The short block is measured and assembled using a new 2015-20 Subaru 2.0L WRX crankshaft that is matched to King main bearings. Manley I-Beam rods with ARP2000 rod bolts are utilized along with King or ACL rod bearings. The case halves are sealed with new OEM case bolts and sealant. Finally, IAG-Spec 86.25mm forged pistons are spec’d and installed along with an OEM oil plug finishing off the short block.
    • Stage 3 Extreme FA20 Includes:
      • Case Halves – Converted to Closed Deck using brand new Subaru OEM case halves
      • Case Machining – Modified for improved oiling
      • Case Machining – Bored and honed to 86.25mm
      • O-Ringing – Machine and O-Ring Deck Surface
      • Head Studs – Machine Case to 1/2″ head studs – * Head studs are sold separately
      • Pistons – IAG-Spec 86.25mm Forged Pistons, Ring Set, and .150″ x 2.250″ Chromoly Wrist Pins.
      • Connecting Rods – Manley I-Beam / ARP2000 Rod Bolts
      • Rod – ACL or King XPG
      • Main Bearings – King XPG
      • Crankshaft – New Subaru FA20 DIT WRX crankshaft
      • Case / Main Bolts – Standard Subaru case bolts
      • Hardware – OEM Oil Plug – comes preinstalled at the oil pan location
  • Specs: This IAG Short Block has a power output rating of 800BHP.
  • 10.6:1 (stock compression) on standard gasket thickness.

*All IAG short blocks are balanced and blueprinted